CN1537427A - Composite of herbicide - Google Patents
Composite of herbicide Download PDFInfo
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- CN1537427A CN1537427A CNA2003101016121A CN200310101612A CN1537427A CN 1537427 A CN1537427 A CN 1537427A CN A2003101016121 A CNA2003101016121 A CN A2003101016121A CN 200310101612 A CN200310101612 A CN 200310101612A CN 1537427 A CN1537427 A CN 1537427A
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Abstract
A composite herbicide for corn field contains phenyloxyacetic acid kind of herbicide chosen from 2,4-D sodium, MCPA, MCPA sodium, 2,4-D butylate, etc, and sulfonylurea kind of herbicide chosen from nicosulfuron, rimsulfuron, etc in weight ratio of (1-80):1. The preparation is wattable powder and soluble powder.
Description
Technical field
The invention belongs to pesticide field, relate in particular to a kind of herbicidal composition.The invention provides a kind of by phenoxy acetic acid class and the composite pesticide herbicide composition of sulfonylurea herbicide.This composition can enlarge the control spectrum of weed killer herbicide, improves their control efficiency, reduces dosage, reduces cost, and reduces environmental pollution.
Background technology
Owing to win honour for, strive fertilizer with crops, strive water, farmland weed causes very big loss to crops production every year, present method of preventing and treating farmland weed mainly is the weed killer herbicide of spraying insecticide, and the grass spectrum is little extremely for the weed killer herbicide of unitary class, and composite herbicidal composition can enlarge careless extremely composing.
Phenoxy acetic acid class weed killer herbicide mostly is the hormone-type systemic herbicide, as 2 first, 4 chlorine or 2 first, 4 chlorine sodium salts weeds is had strong physiologically active, makes weeds deformity occur, until death.Obvious to the broadleaf weed performance, and the g and D to gramineous plants does not influence under same concentration, shows as the high selectivity herbicide effect, thereby can be used for the chemical weed control of corn, wheat, paddy field; 2, the 4-D butyl ester is a kind of wide spectrum selective herbicide, is mainly used in the chemical weed control of corn, wheat paddock.Sulfonylurea herbicide mostly is an inhibitor of acetolactate synthetase, can be absorbed by plant stem-leaf, the division of conduction and block cell, weeds is stopped growing and dead.Can prevent and kill off annual weed and perennial broadleaf weed in the corn field as nicosulfuron, rimsulfuron etc.Behind the different mixture of herbicides of this two classes weeding mechanism, obviously the expanding prevention spectrum improves their control efficiency, reduces dosage, reduces cost, and reduces environmental pollution.Up to now, do not find report as yet by the composite pesticide herbicide composition of phenoxy acetic acid class and sulfonylurea herbicide.
Summary of the invention
The object of the present invention is to provide a kind of by phenoxy acetic acid class and the composite pesticide herbicide composition of sulfonylurea herbicide.The present invention is a kind of weed killer herbicide of binary built, and phenoxy acetic acid class weed killer herbicide wherein mostly is the hormone-type systemic herbicide, as 2 first, 4 chlorine or 2 first, 4 chlorine sodium salts weeds is had strong physiologically active, makes weeds deformity occur, until death.Obvious to the broadleaf weed performance, and the g and D to gramineous plants does not influence under same concentration, shows as the high selectivity herbicide effect, thereby can be used for the chemical weed control of corn, wheat, paddy field; 2, the 4-D butyl ester is a kind of wide spectrum selective herbicide, is mainly used in the chemical weed control of corn, wheat paddock.Sulfonylurea herbicide mostly is an inhibitor of acetolactate synthetase, can be absorbed by plant stem-leaf, the division of conduction and block cell, weeds is stopped growing and dead.Can prevent and kill off annual weed and perennial broadleaf weed in the corn field as nicosulfuron, rimsulfuron etc.The mix preparation that adds sulfonylurea herbicide and make in phenoxy acetic acid class weed killer herbicide is the expanding prevention spectrum obviously, improves their control efficiency, reduces dosage, reduces cost, and reduces environmental pollution.Complex preparation provided by the present invention has following characteristics: the removing activity height, and broad weed-killing spectrum has special efficacy to the corn field malignant weed rhizome of nutgrass flatsedge; Cauline leaf is handled behind the seedling, sees careless dispenser; The herbicidal effect that under the dry climate condition, still can bring into normal play; Sulfonylurea is noresidue in soil, and is environmentally safe; Whole growth phase of corn to corn safety, the fertility proterties of corn is all had no adverse effects, volume increase obviously; To second stubble crop safety.The present inventor has carried out research widely to the proportioning of two compounds, has selected the ratio of three kinds of complex weedicides, and its crops that are suitable for are selected.The different compounds of two classes are carried out composite, be not easy to form stable compositions.In order to address the above problem, the inventor has at length studied the various dosage forms and the auxiliary agent of this herbicidal composition and has formed, and has obtained the stable formulation of herbicidal composition of the present invention finally.
Details are as follows with technical scheme of the present invention below:
A kind of herbicidal composition mainly contains phenoxy acetic acid class weed killer herbicide and sulfonylurea herbicide.
Phenoxy acetic acid class weed killer herbicide described in the above-mentioned weed killer herbicide can be 2,4-D sodium, 2 first, 4 chlorine, 2 first, 4 chlorine sodium, 2,4-D butyl ester, high by 2,4-D propionic acid, mecopropP and other phenoxy acetic acid class weed killer herbicide; Sulfonylurea herbicide can be nicosulfuron, rimsulfuron and other sulfonylurea herbicide.The preferred herbicidal composition of the present invention is phenoxy acetic acid class weed killer herbicide 2 first, 4 chlorine or/and 2 first, 4 chlorine sodium, the composition that is mixed with sulfonylurea.The most preferred herbicidal composition of the present invention is the composition that 2 first, 4 chlorine sodium and nicosulfuron are mixed.
The part by weight of each active ingredient can change in the scope of broad in the above-mentioned weed killer herbicide, phenoxy acetic acid class in the formulation: the weight ratio of sulfonylurea is 1-80: 1, and preferred weight ratio is 10-80: 1, most preferred weight ratio is 30-60: 1.In the preparation of following weed killer herbicide, the weight content scope of the active ingredient of this weed killer herbicide is 0.1-90%, is preferably 10-80%, most preferably is 20-70%.
Utilize the above-mentioned weed killer herbicide active ingredient that is mixed, the inventor furthers investigate, and has prepared following stable formulation.Comprising: A, wetting powder (WP); B, soluble powder (SP); C, dry suspending agent; D, water dispersible granules (WG); E, granula (GR); F, tablet (TA) (comprising effervescent tablet); G, soluble liquid (SL); H, oil-suspending agent (OF); I, aqueous suspension agent (SC); J, missible oil (EC).The preferred dosage form of the present invention is wetting powder and soluble powder, most preferably is wetting powder.Therefore the present invention relates to the various preparations of above-mentioned herbicidal activity composition further, and preparation method thereof.
Now details are as follows with preparation of the present invention and wherein each kind of composition:
A, wetting powder (WP) are homodisperse preparations in water.Wetting powder of the present invention is except having added in former medicine as thinners such as white carbon black, precipitated calcium carbonate, potter's clay, diatomite or the inert substance, it also has ionic or nonionic surface active agent wetting agent or dispersant, for example, fatty alcohol polyglycol ether sulphate, fatty acid amide N-methyl cow-bezoar hydrochlorate, sodium sulfate of polyethenoxy ether of fatty alcohol etc.; Dispersant has sodium lignin sulfonate, NNO etc., and wetting agent has lauryl sodium sulfate, JFC etc.; Can also add cosolvent in case of necessity, cosolvent can be dimethylbenzene, toluene, acetone, chloroform.In preparation, the content of active component is 0.1-90% weight, and the content of wetting agent is 0.1-30% weight, and the content of dispersant is 0.1-20% weight, the thinner of surplus.
B, soluble powder (SP) be meant under working concentration, and active ingredient can be disperseed rapidly and a kind of formulation of being dissolved in the water fully, is made up of former medicine, filler and proper assistant.Filler can be sodium sulphate, ammonium sulfate, clay, white carbon, precipitated calcium carbonate etc. in the soluble powder of the present invention, and auxiliary agent can be the mixture of anion surfactant or anion surfactant and non-ionic surface active agent.
C, dry suspending agent (DF) are with former the effective elements of the medicine, wetting agent, dispersant and adhesive, form by the mixing granulation with water.Be used for wetting agent of the present invention and can be among sodium alkyl sulfate, the sodium alkyl benzene sulfonate plasma type surfactant one or more, its consumption is 0.1-20%; Be used for disintegrant of the present invention and can be among starch and derivative, alginic acid and salt and the clay etc. one or more, consumption is 0.1-20%; Be used for formaldehyde condensation products and one or more materials among the polycarboxylic acid surfactant, consumption 5-30% usually that dispersant of the present invention and bonding agent are lignosulfonates, alkylbenzenesulfonate, alkylnaphthalene sulfonate.
D, water dispersible granules (WG) are the formulations that grows up on wetting powder and aqueous suspension agent basis, and its outward appearance is graininess, disintegration quickly, dispersion in water, the dispersion of formation higher suspension.Water dispersible granules of the present invention is made up of former medicine, wetting agent, dispersant, binding agent, emulsifier and carrier.
E, granula (GR) are loose granule shape product, are made by former medicine, carrier and auxiliary agent.In the granula of the present invention, auxiliary agent has wetting agent, dispersant, emulsifier, binding agent, lubricant, helps disintegrant, adsorbent etc.
F, tablet (TA) or effervescent tablet are Formulation, and tablet of the present invention also has filler, wetting agent, dispersant, emulsifier, binding agent, lubricant, disintegrant, helps disintegrant, adsorbent etc. except that former medicine.
G, soluble liquid (SL) are the homogeneous liquid preparation, active ingredient forms true solution behind the dilute with water, and soluble liquid of the present invention consists of the mixture of former medicine, solvent, cosolvent, anion surfactant or anion surfactant and non-ionic surface active agent etc.
H, oil-suspending agent (OF) are one or more pesticide active ingredients (wherein having a kind of former medicine of solid that is at least) high dispersive that forms in non-water system dispersion medium, stable suspension system.Oil-suspending agent of the present invention is made up of former medicine, plant oil solvent, emulsifier, wetting agent, dispersant, stabilizing agent etc.Various auxiliary components in the oil-suspending agent as mentioned above, the content of active component is 0.1-80% weight, the content of emulsifier is 1-20% weight, the content of wetting agent and/or dispersant is 0.1-15% weight, the content of stabilizing agent is 1-5% weight, the oil of surplus.
I, aqueous suspension agent (SC) are to disperse homogenizing and the higher suspension system that forms in aqueous media by former medicine of water-insoluble solid and various auxiliary agent.Aqueous suspension agent of the present invention is made up of former medicine and emulsifier, tackifier, defoamer, antifreeze and water etc., wherein emulsifier can be the compound of one or more anion, non-ionic surface active agent, non-ionic surface active agent such as fatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc.Anion surfactant such as calcium dodecyl benzene sulfonate etc.The non-ionic surface active agent in the emulsifier and the ratio of anion surfactant are 1-10: 1, and preferred proportion is 2-8: 1.Thickener can be xanthans, gelatin, soluble starch, the basic cellulose of carboxylic first (second), polyvinyl alcohol, aluminium-magnesium silicate, diatomite etc.Defoamer is the organosilicon ketone.Antifreeze is glycerine, ethylene glycol, urea etc.In preparation, the content of active component is 0.1-90% weight, and the content of emulsifier is 1-25% weight, and the content of tackifier is 0.01-10% weight, and the content of defoamer is 0.05-5% weight, and the content of antifreeze is 0-10% weight, the water of surplus.
J, missible oil (EC) are to be dissolved in to scale in the organic solvent by pesticide original medicine, add a certain amount of agricultural chemicals emulsifier special again and the homogeneous phase transparent oily liquids made.Missible oil of the present invention also has solvent, cosolvent and emulsifier to form except that former medicine.
Herbicidal composition of the present invention can control of maize Tanaka weeds.Herbicidal composition of the present invention can be used for preventing and kill off multiple annual and perennial weed, and the corn field malignant weed rhizome of nutgrass flatsedge is had special efficacy, doublely controls lamb's-quarters, knotweed, amaranth etc.
The present invention relates to the using method of using herbicidal composition control of maize Tanaka weeds of the present invention further.Using the present composition in the farmland, during controlling weeds, can the present composition be diluted with water to certain concentration, adopt the conventional method of spraying insecticide to use weeds and get on according to conditions such as different soil, weather and weeds populations.The full field spraying of corn 3-4 leaf phase; 5 leaf after date directed sprayings in the ranks.
Description of drawings
2 first, 4 chlorine nicosulfuron wetting powder processing technology figure (seeing Figure of description)
2 first, 4 chlorine and nicosulfuron are slightly mixed, wetting agent, dispersant and filler are slightly mixed, enter ultrafine crusher jointly and pulverize, then discharging packing after agravic mixing.
Embodiment
The present invention will be described in detail below by specific embodiment.What should propose at this is that following embodiment is a purpose with illustration the present invention, and they are not construed as limiting the invention.Except as otherwise noted, the content of various compositions by weight.
Example of formulations:
Example of formulations 1:2 first 4 chlorine nicosulfuron wetting powders
| Material name | 57% preparation | 42% preparation | 28% preparation |
| 2 first, 4 chlorine | ????56 | ????39 | ????26 |
| Nicosulfuron | ????1 | ????3 | ????2 |
| Wetting agent | ????3 | ????1.5 | ????1 |
| Dispersant | ????8 | ????6 | ????3 |
| Filler | Complement to 100 | Complement to 100 | Complement to 100 |
Annotate: 1. wetting agent is a fatty alcohol polyglycol ether sulphate: fatty acid amide N-methyl cow-bezoar hydrochlorate=2: 1.
2. dispersant is a sodium lignin sulfonate: NNO=1: 1.
3. filler is a kaolin.
Shown in above-mentioned embodiment 1, take by weighing each amount of substance,, make the wetting powder of different content of the present invention according to specific method shown in 2 first, the 4 chlorine nicosulfuron wetting powder processing technology figure processing technology figure.
Example of formulations 2: water dispersible granules
| 80% preparation | 70% preparation | 80% preparation | 70% preparation |
| 2 first, 4 chlorine 76% | 2 first, 4 chlorine 66% | 2 first, 4 chlorine 78% | 2 first, 4 chlorine 68% |
| Nicosulfuron 4% | Nicosulfuron 4% | Rimsulfuron 2% | Rimsulfuron 2% |
| Dispersant 14% | Dispersant 12% | Dispersant 12% | Dispersant 8% |
| Wetting agent 5% | Wetting agent 5% | Wetting agent 4% | Wetting agent 4% |
| Thinner to 100% | Thinner to 100% | Thinner to 100% | Thinner to 100% |
Annotate: 1. dispersant is NNO.
2. wetting agent is JFC.
3. thinner is white carbon black or diatomite.
Shown in above-mentioned embodiment, take by weighing each amount of substance,, make the water dispersible granules of different content of the present invention according to the method for preparation water dispersible granules.
Drug effect embodiment:
57%2 first, 4 chlorine nicosulfuron wetting powder cauline leafs are handled the test of control of maize weeds in field
57%2 first, 4 chlorine nicosulfuron wetting powders are adopted in this test, wherein contain 56%2 first, 4 chlorine and 1% nicosulfuron active ingredient.Using dosage is 100 gram/mus.But the contrast medicament is 56%2 first, 4 chlorine wet-millings, consumption 100 gram/mus, but 4% nicosulfuron wet-milling, consumption 25 gram/mus.The blank spray amount of waiting until clear water.
For studying thing is corn.
Choose that long-term weeds kind is many, density is big, the rhizome of nutgrass flatsedge is caused harm, and serious plot is the test region.Weeds mainly contain the rhizome of nutgrass flatsedge, lamb's-quarters, knotweed, amaranth etc.
After test method is emergence of corn, weeds 3-4 leaf phase, spray medicine when most weeds all sprout.Even dispenser is carried out in one sub-district, one sub-district.In addition, every sub-district is fixed 5 strains and is sprayed weed killer herbicide, as the situation of observing poisoning.Not dispenser of blank, not weeding.After the dispenser corn being carried out consistent conventional cultivation handles.
Experiment is totally 7 chemicals treatment and 1 blank.Each is handled equal 4 times and repeats.
The upgrowth situation of 2-10 days range estimation weeds and the fertility condition of corn after the medication were observed once in per 2 days.Handle and observed weeds kind and the quantity that each is handled in back 15 days.Handle and investigated weeds strain number and fresh weight in back 30 days.Divide the sub-district harvesting corn at last, singles receive in fact.
The computational analysis method of drug effect is as follows:
Strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain number * 100%
Fresh weight preventive effect=(check plot weeds fresh weight-treatment region weeds fresh weight)/check plot weeds fresh weight * 100%
Rate of growth=(treatment region per mu yield-check plot per mu yield)/check plot per mu yield * 100%
Calculate respectively and respectively handle the herbicidal effect of sub-district, preventive effect percentage carries out new multipole difference analysis.
Symphyogenetic differentiation is adopted fast and practical Colby method.If E is the expection weeds preventive effect of using with between compound (%), X and Y are respectively the weeds preventive effects (%) of two kinds of compound list times spent.Then:
E＝X+Y-XY/100
Table 1 is 15 days the strain preventive effect table of comparisons after the chemicals treatment.
Table 2 is strain preventive effect tables of comparisons of 30 days after the chemicals treatment.
Table 3 is fresh weight preventive effect tables of comparisons of 30 days after the chemicals treatment.
Table 4 is output application forms.
57%2 first, 4 chlorine nicosulfuron wetting powders among the present invention have good preventive effect to most of weeds as can be seen from the table, and effect of increasing production is obvious.
This weed killer herbicide is a cauline leaf inorganic agent behind the seedling, sees careless dispenser; The herbicidal effect that under the dry climate condition, still can bring into normal play; Broad weed-killing spectrum can be prevented and kill off the rhizome of nutgrass flatsedge and other corn field weed effectively; Sulfonylurea is noresidue in soil, and is environmentally safe; Whole growth phase of corn to corn safety, the fertility proterties of corn is all had no adverse effects, volume increase obviously; To second stubble crop safety.
15 days strain preventive effect contrast after table one, the dispenser
| Medicament | Formulation rate (gai/ mu) | The actual preventive effect % of the rhizome of nutgrass flatsedge | Rhizome of nutgrass flatsedge Colby method expection preventive effect % | The actual preventive effect % of lamb's-quarters | Lamb's-quarters Colby method expection preventive effect % | The actual preventive effect % of knotweed | Knotweed Colby method expection preventive effect % | The actual preventive effect % of amaranth | Amaranth Colby method expection preventive effect % |
| 2 first, 4 chlorine sodium | ????56 | ????38.73 | ????38.76 | ????40.21 | ????45.55 | ||||
| Nicosulfuron | ????0.5 | ????68.88 | ????65.42 | ????63.64 | ????62.18 | ||||
| Nicosulfuron | ????0.8 | ????71.47 | ????70.36 | ????75.45 | ????76.00 | ||||
| Nicosulfuron | ????1.0 | ????82.51 | ????85.54 | ????84.12 | ????82.41 | ||||
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+0.5 | ????92.39 | ????80.93 | ????93.98 | ????78.82 | ????90.84 | ????78.26 | ????91.90 | ????79.41 |
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+0.8 | ????96.77 | ????82.52 | ????96.33 | ????81.85 | ????96.33 | ????85.32 | ????96.21 | ????86.88 |
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+1.0 | ????98.64 | ????89.28 | ????99.86 | ????91.14 | ????98.80 | ????90.50 | ????98.09 | ????90.42 |
| CK (clear water) | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 |
30 days strain preventive effect contrast after table two, the dispenser
| Medicament | Formulation rate (gai/ mu) | The actual preventive effect % of the rhizome of nutgrass flatsedge | Rhizome of nutgrass flatsedge Colby method expection preventive effect % | The actual preventive effect % of lamb's-quarters | Lamb's-quarters Colby method expection preventive effect % | The actual preventive effect % of knotweed | Knotweed Colby method expection preventive effect % | The actual preventive effect % of amaranth | Amaranth Colby method expection preventive effect % |
| 2 first, 4 chlorine sodium | ??56 | ????42.53 | ????41.40 | ????46.28 | ????49.86 | ||||
| Nicosulfuron | ??0.5 | ????70.01 | ????69.54 | ????65.94 | ????64.13 | ||||
| Nicosulfuron | ??0.8 | ????77.32 | ????76.71 | ????80.04 | ????78.90 | ||||
| Nicosulfuron | ??1.0 | ????83.46 | ????84.06 | ????85.11 | ????84.28 | ||||
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+0.5 | ????97.37 | ????82.76 | ????96.80 | ????82.15 | ????94.38 | ????81.70 | ????96.49 | ????82.02 |
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+0.8 | ????100 | ????86.97 | ????100 | ????86.35 | ????98.46 | ????89.28 | ????98.01 | ????89.42 |
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+1.0 | ????100 | ????90.49 | ????100 | ????90.66 | ????99.95 | ????92.00 | ????99.24 | ????92.12 |
| CK (clear water) | ??0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 |
30 days fresh weight preventive effect contrast after table three, the dispenser
| Medicament | Formulation rate (gai/ mu) | The actual preventive effect % of the rhizome of nutgrass flatsedge | Rhizome of nutgrass flatsedge Colby method expection preventive effect % | The actual preventive effect % of lamb's-quarters | Lamb's-quarters Colby method expection preventive effect % | The actual preventive effect % of knotweed | Knotweed Colby method expection preventive effect % | The actual preventive effect % of amaranth | Amaranth Colby method expection preventive effect % |
| 2 first, 4 chlorine sodium | ??56 | ????50.05 | ????50.70 | ????49.28 | ????49.31 | ||||
| Nicosulfuron | ??0.5 | ????80.11 | ????72.37 | ????68.86 | ????66.57 | ||||
| Nicosulfuron | ??0.8 | ????85.30 | ????80.62 | ????80.95 | ????83.40 | ||||
| Nicosulfuron | ??1.0 | ????89.75 | ????91.11 | ????88.44 | ????90.09 | ||||
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+0.5 | ????98.86 | ????90.06 | ????97.68 | ????86.38 | ????98.02 | ????84.20 | ????96.31 | ????83.05 |
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+0.8 | ????100 | ????87.66 | ????99.55 | ????90.44 | ????99.37 | ????90.34 | ????98.27 | ????91.58 |
| 2 first, 4 chlorine sodium+nicosulfurons | ??56+1.0 | ????100 | ????94.88 | ????100 | ????95.62 | ????100 | ????94.14 | ????99.70 | ????94.97 |
| CK (clear water) | ??0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 | ????0 |
Table 4, output application form
| Medicament | Formulation rate (gai/ mu) | Output kg/ mu | Otherness | The amount of increase in production (%) that dispenser is handled |
| 2 first, 4 chlorine sodium | ????56 | ????86.50 | ????B | ????5.62 |
| Nicosulfuron | ????0.5 | ????90.41 | ????B | ????11.78 |
| Nicosulfuron | ????0.8 | ????93.20 | ????B | ????13.22 |
| Nicosulfuron | ????1.0 | ????98.45 | ????A | ????21.72 |
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+0.5 | ????112.72 | ????A | ????39.37 |
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+0.8 | ????114.91 | ????A | ????42.07 |
| 2 first, 4 chlorine sodium+nicosulfurons | ????56+1.0 | ????115.00 | ????A | ????42.18 |
| CK (clear water) | ????0 | ????80.88 |
Claims (10)
1. a herbicidal composition is characterized in that containing phenoxy acetic acid class and sulfonylurea herbicide, and wherein phenoxy acetic acid class weed killer herbicide can be 2,4-D sodium, 2 first, 4 chlorine, 2 first, 4 chlorine sodium, 2,4-D butyl ester, high by 2,4-D propionic acid or mecopropP; Sulfonylurea herbicide can be nicosulfuron or rimsulfuron; The phenoxy acetic acid class: the weight ratio of sulfonylurea is 1-80: 1.
2. require 1 herbicidal composition according to aforesaid right, it is characterized in that active constituent content is a 0.1-90% weight.
3. require 1 and 2 herbicidal composition according to aforesaid right, it is characterized in that containing 2 first, 4 chlorine sodium and nicosulfurons.
4. require 3 herbicidal composition according to aforesaid right, it is characterized in that the weight ratio of 2 first, 4 chlorine sodium and nicosulfuron is 56: 1.
5. according to the herbicidal composition of above-mentioned arbitrary claim, it is characterized in that to be mixed with wetting powder, soluble powder, dry suspending agent, water dispersible granules, granula, tablet, effervescent tablet, soluble liquid, oil-suspending agent, aqueous suspension agent or missible oil.
6. according to claim 1---5 herbicidal composition, the content that it is characterized in that active component in the wetting powder is 0.1-90% weight, and the content of wetting agent is 0.1-30% weight, and the content of dispersant is 0.1% weight, the thinner of surplus.
7. according to the preparation of claim 6, ionic wherein or nonionic surface active agent wetting agent or dispersant are fatty alcohol polyglycol ether sulphate, fatty acid amide N-methyl cow-bezoar hydrochlorate or sodium sulfate of polyethenoxy ether of fatty alcohol; Dispersant is sodium lignin sulfonate or NNO, and wetting agent is lauryl sodium sulfate or JFC.
8. according to claim 1---the Herbicidal combinations in 7 is characterized in that each composition weight content is 2 first, 4 chlorine 56% in 2 first, the 4 chlorine nicosulfuron wetting powders, nicosulfuron 1%, wetting agent 3%, dispersant 8%, the filler of surplus.
9. according to claim 1---the Herbicidal combinations in 8; it is characterized in that wetting agent is a fatty alcohol polyglycol ether sulphate in 2 first, the 4 chlorine nicosulfuron wetting powders: fatty acid amide N-methyl cow-bezoar hydrochlorate=2: 1, dispersant is a sodium lignin sulfonate: NNO=1: 1.
10. the using method of a herbicidal composition is characterized in that the composition of claim 1-9 is used controlling weeds in the corn field.
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| CNA2003101016121A CN1537427A (en) | 2003-10-22 | 2003-10-22 | Composite of herbicide |
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|---|---|---|---|
| CNA2003101016121A CN1537427A (en) | 2003-10-22 | 2003-10-22 | Composite of herbicide |
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| CN102754656A (en) * | 2012-06-01 | 2012-10-31 | 云南省林业科学院 | Mikania micrantha herbicide |
| WO2013106972A1 (en) * | 2012-01-19 | 2013-07-25 | 山东潍坊润丰化工有限公司 | 2,4-d saline-soluble granule and preparation method therefor |
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